A Phase 1 Study of FT819 in B-cell Mediated Autoimmune Disease

NCT ID: NCT06308978

Last Updated: 2025-11-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

244 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-03-28

Study Completion Date

2042-09-30

Brief Summary

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This is a phase 1 study designed to evaluate the safety, pharmacokinetics (PK), and anti-B-cell activity of FT819 following treatment with or without auxiliary medicinal product (AMP) in participants with moderate to severe active systemic lupus erythematosus (SLE), antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitis (AAV), idiopathic inflammatory myositis (IIM), and systemic sclerosis (SSc). The study will consist of a dose-escalation stage, followed by an expansion stage to further evaluate the safety and activity of FT819.

Detailed Description

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Conditions

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Antineutrophilic Cytoplasmic Antibody (ANCA)- Associated Vasculitis (AAV) Idiopathic Inflammatory Myositis (IIM) Systemic Sclerosis (SSc) Systemic Lupus Erythematosus (SLE)

Keywords

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Fate Therapeutics Idiopathic inflammatory myositis (IIM) Systemic lupus erythematosus (SLE) Systemic sclerosis (SSc) Antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitis (AAV) Allogeneic CAR-T CD19-Targeted Therapy FT819 Cell Therapy for Autoimmune Diseases B-Cell Depletion in Autoimmune Disease Phase 1 Clinical Trial Allogeneic CAR cells Autoimmune Diseases A Phase 1 Study of FT819 in B-cell Mediated Autoimmune Diseases

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Regimen A (Single dose with AMP)

Group Type EXPERIMENTAL

FT819

Intervention Type DRUG

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Fludarabine

Intervention Type DRUG

Fludarabine will be administered as an IV infusion at planned dose levels.

Cyclophosphamide

Intervention Type DRUG

Cyclophosphamide will be administered as an IV infusion at planned dose levels.

Bendamustine

Intervention Type DRUG

Bendamustine will be administered as an IV infusion at planned dose levels.

Regimen B (Single-dose without AMP, with background therapy)

Group Type EXPERIMENTAL

FT819

Intervention Type DRUG

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Regimen C (Two-dose with AMP)

Group Type EXPERIMENTAL

FT819

Intervention Type DRUG

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Fludarabine

Intervention Type DRUG

Fludarabine will be administered as an IV infusion at planned dose levels.

Cyclophosphamide

Intervention Type DRUG

Cyclophosphamide will be administered as an IV infusion at planned dose levels.

Bendamustine

Intervention Type DRUG

Bendamustine will be administered as an IV infusion at planned dose levels.

Regimen D (Two-dose without AMP, with background therapy)

Group Type EXPERIMENTAL

FT819

Intervention Type DRUG

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Regimen B1 (Single-dose without AMP, background therapy temporarily suspended)

Group Type EXPERIMENTAL

FT819

Intervention Type DRUG

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Interventions

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FT819

FT819 will be administered as intravenous (IV) infusion at planned dose levels.

Intervention Type DRUG

Fludarabine

Fludarabine will be administered as an IV infusion at planned dose levels.

Intervention Type DRUG

Cyclophosphamide

Cyclophosphamide will be administered as an IV infusion at planned dose levels.

Intervention Type DRUG

Bendamustine

Bendamustine will be administered as an IV infusion at planned dose levels.

Intervention Type DRUG

Other Intervention Names

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FLUDARA CYTOXAN

Eligibility Criteria

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Inclusion Criteria

* Age: 12 to 70 years old.
* Diagnosis: Must have active B-cell mediated autoimmune disease (SLE, AAV, IIM, or SSc) confirmed by standard criteria.
* Disease Severity: Moderate to severe, requiring at least two prior treatments that were ineffective.
* Health Status: Adequate organ function to tolerate treatment.
* Consent: Able to provide informed consent or assent/obtain parental consent and comply with study procedures.

Exclusion Criteria

* Pregnancy/Breastfeeding: Women must not be pregnant or nursing.
* Severe Organ Dysfunction: Significant heart, lung, liver, or kidney impairment.
* Active Infections: No recent or ongoing serious infections.
* Recent Cancer or Prior Cell Therapy: No active/recent malignancies, prior CAR T-cell therapy, or organ transplant.
* Allergies: No known allergies to study treatments.
* Weight Restriction: Must weigh at least 50 kg (110 lbs).
Minimum Eligible Age

12 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fate Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Providence Medical Foundation

Fullerton, California, United States

Site Status RECRUITING

University of California Irvine

Irvine, California, United States

Site Status RECRUITING

Children's Hospital Los Angeles Division Of Rheumatology

Los Angeles, California, United States

Site Status RECRUITING

University of California San Francisco

San Francisco, California, United States

Site Status RECRUITING

University of Minnesota Medical School

Minneapolis, Minnesota, United States

Site Status RECRUITING

University of Nebraska Medical Center

Omaha, Nebraska, United States

Site Status RECRUITING

Montefiore Medical Center

New York, New York, United States

Site Status RECRUITING

Duke University Health System

Durham, North Carolina, United States

Site Status RECRUITING

MetroHealth

Cleveland, Ohio, United States

Site Status RECRUITING

University of Oklahoma

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Regional One Health

Memphis, Tennessee, United States

Site Status RECRUITING

Manchester University NHS Foundation Trust

Manchester, Greater Manchester, United Kingdom

Site Status RECRUITING

Cambridge University Hospitals NHS Foundation Trust

Cambridge, , United Kingdom

Site Status RECRUITING

Countries

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United States United Kingdom

Central Contacts

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Fate Clinical Trials

Role: CONTACT

Phone: 858-875-1800

Email: [email protected]

Other Identifiers

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FT819-102

Identifier Type: -

Identifier Source: org_study_id